ALKYLATION OF AROMATIC COMPOUNDS WITH alpha -OLEFINS USING ZEOLITE CATALYSTS

摘要

The present invention is a process for the preparation of a monoalkylated aromatic compound. This process includes the steps of combining a zeolite catalyst in the amount of about 0.5 weight % to about 3 weight % based on total reactants, together with an aromatic compound in a batch reaction chamber. The combined zeolite and aromatic compound are then heated to a reaction temperature. An alpha olefin is then added to the reaction chamber as an alkylating agent by metered addition, so that the olefin is consumed by chemical reaction with the aromatic compound essentially simultaneously with its addition, and the concentration of olefin in the reaction mixture is maintained to as close to zero as possible. The molar ratio of initially charged aromatic compound to the total amount of alpha olefin employed in the reaction ranges from 1:1 to 10:1.